{"id":1144008,"url":"https://alion.io/job/zensar-technologies-cassandra-dba","title":"Cassandra DBA","company":{"id":59576,"name":"Zensar Technologies","domain":"zensar.com","url":"https://alion.io/company/zensar-technologies","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"services","is_intermediary":false,"listed_via":null,"ats_vendor":"Oracle","truth_index":{"grade":"A","score":94,"open_postings":37,"ghost_share":0.081,"stale_share":0.135,"repost_share":0.216,"time_to_fill_p50_days":3,"computed_at":"2026-09-27T05:45:00Z"}},"role":"DevOps","role_family":"DevOps","seniority":null,"employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["India"],"countries":["IN"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Bootstrap","optional":false},{"name":"Linux","optional":false},{"name":"JavaScript","optional":true}],"status":"live","first_seen_at":"2026-09-23T12:28:01Z","employer_posted_date":"2026-09-23","last_verified_at":"2026-09-27T23:22:48Z","board_verified":true,"closed_at":null,"days_open":4,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":4},"description":"Cassandra Performance Tuning\nAnalyze and optimize read/write performance and latency.\nTune compaction, caching, consistency levels, tombstones, SSTables, and Cassandra configuration.\nIdentify hot partitions, slow queries, and resource bottlenecks.\n Node Expansion & Cluster Management\nAdd, replace, remove, and decommission Cassandra nodes safely.\nPerform cluster expansion and capacity upgrades with minimal production impact.\nManage token distribution, bootstrap/streaming, repair, cleanup, and cluster rebalancing.\nBackup & Recovery\nImplement and maintain Cassandra backup and restore strategies.\nPerform snapshots, incremental backups, and point-in-time recovery where supported by the backup solution.\nConduct recovery testing and support disaster-recovery procedures.\nJVM & System Tuning\nTune Cassandra JVM heap, garbage collection, and memory settings.\nTroubleshoot GC pauses, heap pressure, CPU, disk I/O, and memory issues.Tune Linux/OS and storage configurations for Cassandra workloads.\n\n Monitoring & Troubleshooting\nMonitor cluster health, availability, latency, throughput, disk usage, compactions, dropped messages, GC, and repairs.\nTroubleshoot production issues including node failures, high latency, timeouts, replica inconsistencies, and capacity problems.\nStrong experience with nodetool, Cassandra logs, metrics, tracing, and monitoring/alerting platforms.","description_format":"text","description_chars":1377,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["IT Consulting & Digital Transformation","IT Outsourcing & Dedicated Teams"],"lifecycle":[{"event":"open","at":"2026-09-23T13:59:25Z"}],"liveness":{"score":28,"band":"fade","label":"Fading","p_open":1,"p_active":0.511,"p_room":0.55,"age_days":3,"expected_fill_days":3,"reasons":["conf:4","velocity","win:tail","comp:brand"],"computed_at":"2026-09-27T05:45:00Z"},"pay":null,"html_url":"https://alion.io/job/zensar-technologies-cassandra-dba","json_url":"https://alion.io/job/zensar-technologies-cassandra-dba.json","meta":{"generated_at":"2026-09-28T02:49:59Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","usage":{"tier":"crawler","counted_by":"address","units_charged":1,"used_today":1641,"day_limit":5000,"remaining_today":3359,"minute_limit":60,"resets_at":"2026-09-29T00:00:00Z"}}}